solarwind wrote: > So what's the difference between a plain crystal > (http://www.futurlec.com/ICCrystalsMain.shtml) and a crystal > oscillator (http://www.futurlec.com/ICCrystalsOscillators.shtml)? A crystal is the bare passive component that can be used to make a accurate oscillator. A crystal oscillator is the crystal with the circuitry around it to make the whole oscillator. ******************************************************************** Embed Inc, Littleton Massachusetts, http://www.embedinc.com/products (978) 742-9014. Gold level PIC consultants since 2000. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist